JSON解析android - 来自资源文件夹

Question

我在eclipse 中的res/raw文件夹中保存了一个文本文件.我在这里显示该文件的内容:

{
    "Categories": {
        "Category": [
            {
                "cat_id": "3",
                "cat_name": "test"
            },
            {
                "cat_id": "4",
                "cat_name": "test1"
            },
            {
                "cat_id": "5",
                "cat_name": "test2"
            },
            {
                "cat_id": "6",
                "cat_name": "test3"
            }
        ]
    }
}

我想解析这个JSON数组.我怎样才能做到这一点？

有人可以帮帮我吗？

提前致谢.

Answer 1

//Get Data From Text Resource File Contains Json Data.    
InputStream inputStream = getResources().openRawResource(R.raw.json);
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

int ctr;
try {
    ctr = inputStream.read();
    while (ctr != -1) {
        byteArrayOutputStream.write(ctr);
        ctr = inputStream.read();
    }
    inputStream.close();
} catch (IOException e) {
    e.printStackTrace();
}
Log.v("Text Data", byteArrayOutputStream.toString());
try {
    // Parse the data into jsonobject to get original data in form of json.
    JSONObject jObject = new JSONObject(
            byteArrayOutputStream.toString());
    JSONObject jObjectResult = jObject.getJSONObject("Categories");
    JSONArray jArray = jObjectResult.getJSONArray("Category");
    String cat_Id = "";
    String cat_name = "";
    ArrayList<String[]> data = new ArrayList<String[]>();
    for (int i = 0; i < jArray.length(); i++) {
        cat_Id = jArray.getJSONObject(i).getString("cat_id");
        cat_name = jArray.getJSONObject(i).getString("cat_name");
        Log.v("Cat ID", cat_Id);
        Log.v("Cat Name", cat_name);
        data.add(new String[] { cat_Id, cat_name });
    }
} catch (Exception e) {
    e.printStackTrace();
}